The GMI6022-2C-30db with Electret Condenser Microphone SMD RoHS is a small, surface-mountable, RoHS-compliant microphone manufactured by INGHAi. It features a cableless, surface-mount design and is designed to be mounted on a PCB to provide directional audio reception. The mic has a low EIN (Equivalent Input Noise) level and strong S/N (Signal to Noise) ratio, providing crisp and clear audio output. It features a frequency response range of 30Hz-20kHz, enabling it to pick up high and low tones accurately. It also has a low THD (Total Harmonic Distortion) of 0.35%, which gives it excellent audio quality. The mic is designed to be durable and reliable, making it a great choice for applications such as voice recognition, audio capture, and other applications where accurate audio is required.